We are excited to share our latest product highlight for 2026! Our environmentally compliant oily water separators, Spillceptor and Flowceptor, have now joined our SQIDEP-verified range.
Ensuring Joy in Water for future generations with high-performance, data-driven stormwater solutions, Atlan Stormwater offers the largest range of SQIDEP-verified devices on the market. Spillceptor and Flowceptor join our existing SQIDEP verified devices, which include Atlan BaffleBox, StormSack, Vortceptor, AtlanBasin, FlowFilter, FlowGuard and the half and full-height AtlanFilter.
The Stormwater Quality Improvement Device Evaluation Protocol (SQIDEP) is Stormwater Australia’s industry-leading framework for the independent verification of stormwater device performance. By providing a robust methodology for third-party assessment, SQIDEP sets important standards for verifying the pollution removal capabilities of stormwater devices.
Supporting developers, councils, and engineers during asset selection, SQIDEP saves time and provides peace of mind. Choosing verified devices ensures that our stormwater network is developed to effectively protect our pristine waterways and meet the needs of our growing communities.
Spillceptor & Flowceptor
Spillceptor and Flowceptor are compliant with environmental performance requirements for oily water separators, achieving stormwater discharge quality of less than 5 mg/L of hydrocarbon content.
These enhanced gravity separators treat incoming stormwater by allowing light liquids to rise to the surface for capture while denser clean water passes through the device. Equipped with coalescer units to enhance hydrocarbon capture, these enable smaller oil particles that escape initial separation to agglomerate into larger globules, increasing hydrocarbon removal efficiency.
The treatment efficiencies of the Spillceptor and Flowceptor have been verified as –
| POLLUTANT | EFFICIENCY* |
|---|---|
| Gross Pollutants (GP) | 99% |
| Total Suspended Solids (TSS) | 74% |
| Total Phosphorus (TP) | 18% |
| Total Nitrogen (TN) | 18% |
*Contact us to confirm approval performance for the project LGA.
Spillceptor is designed for high-risk sites, with an Automatic Closure Device (ACD) and full retention capabilities that ensure hydrocarbon capture under all flow and spill conditions. These devices meet regulatory requirements for high-risk hydrocarbon management on sites such as service stations, transport hubs, transformer yards, and refuelling areas.
Flowceptor’s design is based on similar separation principles but is configured for low-to-medium risk applications, a versatile hydrocarbon treatment option for sites such as car parks, industrial hardstand, and transport depots, These typically have larger catchments with varied risk profiles.
Available in inline and offline configurations, Flowceptor can bypass excess flows to meet hydraulic specifications in high-volume conditions – without compromising pollution retention performance.
SQIDEP: Supporting Best Practice Stormwater Outcomes
SQIDEP provides a robust framework for assessing, reporting, and evaluating device performance. Every day, these tools are used to explore the best-practice solutions available in the market to meet the growing requirements for Water Sensitive Urban Design (WSUD) in our urban communities.
Our design team is available Australia-wide with a range of services, including MUSIC modelling, engineering calculations, project drawings, and preliminary product recommendations. We work to stop pollution at the source – our urban catchments; collaborating daily with project stakeholders to find solutions that overcome their stormwater challenges.
Through the development of our SQIDEP range and confidence in our devices’ performance, we reflect our Joy in Water philosophy, and our belief that clean waterways are a right, not a privilege. Rigorous testing ensures our solutions perform as intended, protecting riverine and marine environments for future generations.